This repository demonstrates how to use the Crypto++ (Crypto++) v8.9(Oct 2, 2023 Released) library in simple C++ projects. It includes hashing, AES encryption/decryption.
✅ Tested on Windows 10 / Visual Studio 2019 / CMake 3.31.8

This repository demonstrates how to use the Crypto++ (https://cryptopp.com/) library in simple C++ projects. It includes hashing, encryption/decryption, digital signatures, and more.

• Windows 10+
  
• Git for Windows
  
• C++ ISO 17 compatible compiler (GCC, Clang, MSVC)
  
• Visual Studio 2019
  
• CMake ≥ 3.10
  
• Crypto++ library ≥ 8.0 installed or available
  
  
  

git clone https://github.com/ahnshy/Cryptopp-Demo.git
cd Cryptopp-Demo

/ `Root`			# Source files with examples
├── TestData/			# Crypto Test Data
├── TestPrograms/		# Crypto Test Programs
├── TestVectors/		# Crypto Test Vectors
├── ...
├── HashExample.cpp
├── SymmetricCipher.cpp
├── AsymmetricExample.cpp
│── DigitalSignature.cpp
└── README.md			# You are here

• When using RSA/ECDSA examples, ensure secure key sizes (e.g. RSA‑2048 or ECDSA P‑256).
• Make sure to use AutoSeededRandomPool for cryptographically secure randomness.
• Don't handle sensitive data (keys, IVs) in hard-coded strings in production.
  
  

Compiled libraries (.lib, .dll, .exe) will be located in:<br/

 Win32/cryptest
 Win32/cryptlib
 Win32/Output

int CRYPTOPP_API main(int argc, char *argv[]) {
	UNREFERENCED_PARAMETER(argc);
	UNREFERENCED_PARAMETER(argv);

	CryptoPP::byte key[CryptoPP::AES::DEFAULT_KEYLENGTH], initVector[CryptoPP::AES::BLOCKSIZE];
	memset(key, 0x00, CryptoPP::AES::DEFAULT_KEYLENGTH);
	memset(initVector, 0x00, CryptoPP::AES::BLOCKSIZE);

	std::string plainText = "PlainText Test 가나다라 with Korean.";

	auto ciphertext = AESEncrypt(plainText, key, initVector);
	auto decryptedtext = AESDecrypt(plainText, key, initVector);
}

./HashExample
./SymmetricCipher
./AsymmetricExample
./DigitalSignature

This demo project is distributed under the MIT License. Crypto++ itself is licensed under Crypto++ License (similar to BSD) — see LICENSE files for details.